Infrastructure, Migration & Reliability
Hosting Infrastructure Modernization
Migration and stabilization of a large production hosting environment supporting websites, databases, email, backups, certificates, and multiple PHP applications.
Project overview
This work covered hosting migration planning, DirectAdmin environment preparation, website and database migration, PHP-FPM environments, MariaDB, Apache, DNS, SSL/TLS, email configuration, backup workflows, monitoring, validation, and security hardening.
The focus was to move and stabilize a live multi-site environment while keeping production systems maintainable after migration.
The challenge
A live hosting environment had to be moved and stabilized while minimizing disruption and preserving websites, databases, certificates, email behavior, scheduled operations, and application compatibility.
My role
I contributed to migration planning, environment preparation, server configuration, data transfer coordination, website and database validation, SSL and DNS troubleshooting, backup design, post-migration stabilization, security review, and documentation.
The work required hands-on infrastructure support, careful sequencing, and practical communication across technical and operational needs.
Approach and implementation
- Prepared an inventory and migration sequence before major changes.
- Verified backups before migration and configuration work.
- Migrated accounts and databases in controlled stages.
- Checked PHP compatibility, DNS behavior, certificate status, email delivery, and application health.
- Used logging, rollback planning, and post-migration testing to stabilize the environment.
Key capabilities delivered
- Website and database migration
- PHP runtime compatibility checks
- DNS and SSL/TLS validation
- Email and SMTP verification
- Backup retention and recovery planning
- Operational documentation and repeatable procedures
Outcomes
- Established a more organized and maintainable hosting environment.
- Improved backup and recovery readiness.
- Standardized validation across migrated websites.
- Resolved compatibility, certificate, and configuration issues.
- Created repeatable operational procedures for future maintenance.
Confidentiality note
This overview avoids hostnames, IP addresses, customer domains, usernames, passwords, backup locations, filesystem paths, and exact internal configuration details.